/* ── Buttons ─────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-ui);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) { background: var(--border); }

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover:not(:disabled) { opacity: 0.85; }

.btn-danger-outline {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}
.btn-danger-outline:hover:not(:disabled) { background: rgba(248,81,73,0.1); }

.btn-sm {
  padding: 5px 11px;
  font-size: 13px;
}

.btn-full { width: 100%; }

/* ── Cards ───────────────────────────────────────────────────────────────── */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}

/* ── Badges ──────────────────────────────────────────────────────────────── */

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-setup, .badge-waiting {
  background: rgba(139,148,158,0.15);
  color: var(--text-secondary);
  border: 1px solid rgba(139,148,158,0.3);
}

.badge-active {
  background: rgba(63,185,80,0.15);
  color: var(--success);
  border: 1px solid rgba(63,185,80,0.3);
}

.badge-completed {
  background: rgba(37,99,235,0.15);
  color: #60a5fa;
  border: 1px solid rgba(37,99,235,0.3);
}

.badge-plotting, .badge-resolution {
  background: rgba(210,153,34,0.15);
  color: var(--warning);
  border: 1px solid rgba(210,153,34,0.3);
}

/* ── Forms ───────────────────────────────────────────────────────────────── */

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 9px 12px;
  font-size: 14px;
  font-family: var(--font-ui);
  box-sizing: border-box;
  transition: border-color 0.15s;
}

.form-input:focus {
  outline: none;
  border-color: var(--border-focus);
}

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

/* ── Spinner ─────────────────────────────────────────────────────────────── */

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 40px auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── State helpers ───────────────────────────────────────────────────────── */

.error-state {
  padding: 24px;
  color: var(--danger);
  font-size: 14px;
  text-align: center;
}

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