/* ─── Design Tokens ─────────────────────────────────────────────── */
:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --surface-hover: #f0f0ed;
  --border: #e5e5e0;
  --border-light: #f0f0ed;
  --ink: #121416;
  --ink-secondary: #4b5563;
  --muted: #6b7280;
  --accent: #5ab4ac;
  --accent-dark: #3d9d94;
  --accent-light: #e6f5f3;
  --success: #22c55e;
  --success-light: #dcfce7;
  --error: #ef4444;
  --error-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --info: #3b82f6;
  --info-light: #dbeafe;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sidebar-width: 240px;
}

/* ─── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  min-height: 100vh;
}
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Typography ────────────────────────────────────────────────── */
h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: 1.2rem; font-weight: 600; letter-spacing: -0.01em; }
h3 { font-size: 1rem; font-weight: 600; }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }

/* ─── Cards ─────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}
.card--clickable { cursor: pointer; transition: box-shadow 0.15s, border-color 0.15s; }
.card--clickable:hover { box-shadow: var(--shadow); border-color: var(--accent); }

/* ─── Stat Cards ────────────────────────────────────────────────── */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem; }
.stat-card { text-align: center; padding: 1rem; }
.stat-card__value { font-size: 1.8rem; font-weight: 700; color: var(--accent-dark); }
.stat-card__label { font-size: 0.8rem; color: var(--muted); margin-top: 0.25rem; }

/* ─── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  min-height: 40px; padding: 0.5rem 1.1rem;
  font-family: var(--font); font-size: 0.9rem; font-weight: 500;
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  transition: background 0.15s, opacity 0.15s, transform 0.1s;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover:not(:disabled) { background: var(--accent-dark); }
.btn--secondary { background: transparent; color: var(--ink); border: 1px solid var(--border); }
.btn--secondary:hover:not(:disabled) { background: var(--surface-hover); }
.btn--ghost { background: transparent; color: var(--muted); }
.btn--ghost:hover:not(:disabled) { color: var(--ink); background: var(--surface-hover); }
.btn--danger { background: var(--error); color: #fff; }
.btn--danger:hover:not(:disabled) { background: #dc2626; }
.btn--sm { min-height: 32px; padding: 0.3rem 0.75rem; font-size: 0.8rem; }
.btn--icon { min-height: 36px; padding: 0.4rem; width: 36px; }

/* ─── Forms ─────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-label { font-size: 0.8rem; font-weight: 500; color: var(--ink-secondary); }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 0.55rem 0.75rem;
  font-family: var(--font); font-size: 0.9rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--ink);
  transition: border-color 0.15s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}
.form-textarea { min-height: 80px; resize: vertical; }
.form-hint { font-size: 0.75rem; color: var(--muted); }
.form-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 0.75rem; }
.form-row { display: flex; gap: 1rem; }
.form-row > .form-group { flex: 1; }

/* ─── Pills & Badges ───────────────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.15rem 0.6rem; border-radius: 999px;
  font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em;
}
.pill--idle, .pill--pending { background: var(--border-light); color: var(--muted); }
.pill--working, .pill--in_progress { background: var(--accent-light); color: var(--accent-dark); }
.pill--done, .pill--connected, .pill--online { background: var(--success-light); color: #16a34a; }
.pill--error, .pill--cancelled, .pill--disconnected { background: var(--error-light); color: #dc2626; }
.pill--paused, .pill--warning { background: var(--warning-light); color: #d97706; }

.badge {
  display: inline-block; padding: 0.1rem 0.5rem; border-radius: var(--radius-sm);
  font-size: 0.72rem; font-weight: 600; text-transform: capitalize;
}
.badge--muted { background: var(--border-light); color: var(--muted); }
.badge--accent { background: var(--accent-light); color: var(--accent-dark); }
.badge--warning { background: var(--warning-light); color: #d97706; }
.badge--error { background: var(--error-light); color: #dc2626; }

/* ─── Spinner ───────────────────────────────────────────────────── */
.spinner {
  width: 24px; height: 24px;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.6s linear infinite;
}
.spinner--sm { width: 16px; height: 16px; border-width: 2px; }
.spinner--lg { width: 40px; height: 40px; border-width: 4px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Empty State ───────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 3rem 1rem; }
.empty-state__icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.empty-state__title { font-size: 1rem; color: var(--ink-secondary); }
.empty-state__subtitle { font-size: 0.85rem; color: var(--muted); margin-top: 0.35rem; }

/* ─── Table ─────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th { text-align: left; padding: 0.6rem 0.75rem; font-weight: 600; color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; border-bottom: 2px solid var(--border); }
td { padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--border-light); }
tr:hover td { background: var(--surface-hover); }

/* ─── Toast ─────────────────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%); z-index: 9999; display: flex; flex-direction: column; gap: 0.5rem; }
.toast {
  padding: 0.6rem 1.2rem; border-radius: var(--radius-sm);
  font-size: 0.85rem; font-weight: 500; color: #fff;
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.25s, transform 0.25s;
}
.toast--visible { opacity: 1; transform: translateY(0); }
.toast--info { background: var(--info); }
.toast--success { background: var(--success); }
.toast--error { background: var(--error); }
.toast--warning { background: var(--warning); }

/* ─── Modal ─────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.4); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--surface); border-radius: var(--radius-lg); padding: 1.5rem;
  width: 90%; max-width: 480px; max-height: 85vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal__header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.modal__title { font-size: 1.1rem; font-weight: 600; }
.modal__close { background: none; border: none; font-size: 1.3rem; cursor: pointer; color: var(--muted); padding: 0.25rem; }

/* ─── Responsive ────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { flex-direction: column; gap: 0.75rem; }
  .hide-mobile { display: none !important; }
}